Re: [squid-users] COSS causing squid Segment Violation on FreeBSD 6.2S (store_io_coss.c)

2009/1/15 Mark Powell <M.S.Powell_at_salford.ac.uk>:

>> Did you manage to get that FreeBSD 7 server working with COSS?
>
> Well did you :)

Yes. At least in testing. I don't (yet) have a client running
FreeBSD-7 and using COSS.

> This problem still exists in the latest squid. Any likelihood of a fix, or
> is COSS not recommended for FBSD?
> Thanks for your time.

FreeBSD-7 (and FreeBSD-current) + AUFS + COSS works fine in
Squid-2.HEAD at least in a polygraph polymix-4 workload. Admittedly
I've been testing it in Cacheboy-1.6 rather than Squid-2.HEAD, but the
COSS code should be the same as far as this bug is concerned.

The fact that you have many pending relocate errors may mean something
else is busted, but as far as I can tell you're the only person who
has reported that COSS problem in particular.

Not that COSS is a fantastically clean codebase to begin with; a lot
of hacking went into it to properly support async disk IO and thus
perform with any semblence of working well. its possible there's a bug
which I just haven't seen in production.

2c,

Adrian

>
>>> adrian
>>>
>>>
>>> 2008/9/12 Mark Powell <M.S.Powell_at_salford.ac.uk>:
>>>>
>>>> On Fri, 12 Sep 2008, Amos Jeffries wrote:
>>>>
>>>>> Can you report a bug on this please, so we don't forget it. with a
>>>>> stack
>>>>> trace when the crash is occuring.
>>>>
>>>> Already did, last year:
>>>>
>>>> http://www.squid-cache.org/bugs/show_bug.cgi?id=1944
>>>>
>>>> Does this mean that COSS can't be successfully used with FreeBSD 7?
>>>> Many thanks.
>>>>
>>>> --
>>>> Mark Powell - UNIX System Administrator - The University of Salford
>>>> Information Services Division, Clifford Whitworth Building,
>>>> Salford University, Manchester, M5 4WT, UK.
>>>> Tel: +44 161 295 6843 Fax: +44 161 295 5888 www.pgp.com for PGP key
>>>>
>>>>
>>>
>>>
>>
>>
>
> --
> Mark Powell - UNIX System Administrator - The University of Salford
> Information Services Division, Clifford Whitworth Building,
> Salford University, Manchester, M5 4WT, UK.
> Tel: +44 161 295 6843 Fax: +44 161 295 5888 www.pgp.com for PGP key
>
>
Received on Sat Jan 17 2009 - 19:38:34 MST